Which one of the following techniques would best be used to separate soil and wa

Question

Which one of the following techniques would best be used to separate soil and water? A. Filtration B. Chromatography C. Fractional distillation D. Decanting Name the separation technique shown in the diagram A. decanting B. filtration C. evaporation D. distillation The boiling point of Benzene is 81 degree C, what is its temperature in degree F? A. 354 B. 177.8 C. 27.22 D. none of them If the Delta H of a reaction is negative, the reaction is A. endothermic and releasing heat B. exothermic and releasing heat C. exothermic and absorbing heat D. Endothermic and absorbing heat

Explanation / Answer

1.Option A is correct.

The best way to separate mud from water,is filtration .

2.Option A is correct.

Separation technique shown in figure is Decanting.

3.Option B is correct.

The 81 Celsius to Fahrenheit formula is: [°F] = ([81] x 9 5) + 32. Therefore, we get:177.8 degree Fahrenheit

4.Option B is correct.

. A system that releases heat to the surroundings, an exothermic reaction, has a negative H by convention, because the enthalpy of the products is lower than the enthalpy of the reactants of the system.

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